6420787686 is an even 10-digits composite number following 6420787685
and preceding 6420787687 . In scientific notation, it is written as 6.420787686 × 10^9.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 1939457520 positive integers (up to 6420787686) that are relatively prime to 6420787686.
6420787686 has 16 divisors, whose sum is 10108712448
The reverse of 6420787686 is 6867870246
Previous prime number is 23
Is Prime? no
Number parity even
Number length 10
Sum of Digits 54
Digital Root 9
Name
six billion four hundred twenty million seven hundred eighty-seven thousand six hundred eighty-six
Scientific notation
6.420787686 × 10^9
Engineering notation
6.420787686 × 10^9
Prime Factorization
2 × 171 × 23 × 816271
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6420787686
Product of the distinct prime numbers
The prime factorization of 6420787686 is 2 × 171 × 23 × 816271.
Since it has a total of 4 prime factors.
5 , 6 , 89 , 67 , 663 , 688 , 3455 , 4486 , 66023 , 31921 , 231278 , 544762 , 860942 , 8468985 , 72508971 , 30369861 , 581631571 , 838651136 , 6919005154 , 6016607156
n×2
12841575372
n×3
19262363058
n×4
25683150744
n×5
32103938430
n÷2
3210393843
n÷3
2140262562
n÷3
1605196921.5
n÷5
1284157537.2
n2
4.1226514508689E+19
n3
2.6470669669409E+29
n4
1.6996254985352E+39
n5
1.0912934471806E+49
2 √n
80129.817708516
3 √n
1858.6435253753
4 √n
283.07210690655
5 √n
91.520347803899
1 , 2 , 23 , 46 , 171 , 342 , 3933 , 7866 , 816271 , 1632542 , 18774233 , 37548466 , 139582341 , 279164682 , 3210393843 , 6420787686
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-6420787685
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 6420787686 can be divided by 16 positive divisors.
The sum of these divisors (counting 6420787686) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101111110101101010111000111100110
3
Ternary
121120110211210212100
4
Quaternary
11332231113013212
5
Quinary
101122210201221
6
Senary
2541043432530
8
Octal
57655270746
10
Decimal
6420787686
12
Duodecimal
12b2385746
16
Hexadecimal
17eb571e6
20
Vigesimal
5069i946
36
Base36
2y6rrhi
md5
7be420bf7b1bf88a1ac384600971566b
sha1
9a6171d371fe9e885eeb11e87bf5f02932e089f7
sha256
931d587061f9d169752fa430c9af6c9caeca17fddef5579e9918e9d9aee3afbc
sha512
3dbeab0804022ffcd59a500610627ac718aa97ddfe967eaab942cc047a32b0ba4169cb5714717fe7710e1c2169b55d67ce398b1daacfaf97c1325a1d6b887624
ripemd-160
360c2167d6fd7cfa62305e9ed6157083d18505e9
Diameter
12841575372
Circumference
40342998849.195
Area
1.2951691511361E+20
Volume
1.1088008182536E+30
Surface area
5.1806766045444E+20
Circumference
40342998849.195
Perimeter
25683150744
Area
4.1226514508689E+19
Diagonal
9080365026.6594
Surface area
2.4735908705214E+20
Volume
2.6470669669409E+29
Space diagonal
11121130496.765
Perimeter
19262363058
Area
1.7851604437006E+19
Altitude
5560565248.3823
Surface area
1.7851604437006E+19
Volume
3.1195983376314E+28
Height
3026788342.2198